linker3000 wrote in message
news:48622d6a$0$26093$db0fefd9@news.zen.co.uk...
> Hi,
>
> I took the risk of buying a Siemens SX353 ISDN phone from Germany in the
> hope it would work on ISDN2e, but it seems not - and there was me thinking
> the e in ISDN2e was for a European standard!? Ages ago I bought a
> Euracom P4 ISDN phone and that *did* work!
>
> Are the UK/German ISDN standards totally incompatible. I have spoken to
> Siemens and they think it wont work, but you are all very clever round
> here so I thought Id ask before I go to plan B!
>
> Thanks
The most likely reason for it not working is BTs Loose Interpretation of
English and Standards (or LIES for short).
ISDN is supposed to be integrated, but BT doesnt integrate the services and
charges for them a la carte (e.g. CLIPS, COLP etc.).
On BT [business] Highway and possibly other ISDN products there is no S-bus
power (also non standard (BT argued it was optional)) so unpowered phones
etc. wont work. This meant my Swedish Ericsion ISDN phone would not work
without a power adapter, which Siemens very kindly provided FoC. In fact
the power went into one port on the Highway box and came out of the other,
so one adapter powered all my ISDN devices.
Other telcos vary. Some provide all the facilities, but very little
power - or non if on fibre, others just resell BT.